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Finding the Third Proportional to 179,146 and 391,522

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Solution

The third proportional to 179,146 and 391,522 is: 855,667.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,146 : 391,522 = 391,522 : x
  2. Step 2: Convert to fraction form
    179,146/391,522 = 391,522/x
  3. Step 3: Cross multiply
    179,146x = 391,522 × 391,522
  4. Step 4: Simplify right side
    179,146x = 153,289,476,484
  5. Step 5: Solve for x
    x = 153,289,476,484/179,146
  6. Step 6: Final answer
    x = 855,667.87

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.